Attentional bias in the radial and vertical dimensions of space |
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Institution: | Dipartimento di Medicina Sperimentale, Università degli Studi della Campania “Luigi Vanvitelli”, 80128 Napoli, Italy |
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Abstract: | Under visual guidance, healthy subjects usually misbisect radial lines farther than, and vertical lines above the true center. It was suggested that radial and vertical misbisection depended on the presence of an attentional bias toward far/upper space. The aim of the present study was to investigate whether such attentional bias depends on a single mechanism or on separate mechanisms. Ninety participants were asked to bisect lines radially and vertically oriented. The results confirmed the presence of a consistent bisection bias farther than (radial lines), and above (vertical lines) the true center. Furthermore, there was a significant correlation between radial and vertical bisection errors. These findings suggest that a single neural mechanism is involved in producing the attentional bias toward far/upper space. |
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Keywords: | Line bisection Radial lines Vertical lines Attention bias Bisection bias |
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